#for...in..语句
#names = ['huangliang','lihui','xueqi','weijie']
#for name in names:
    #print(name)
sum = 0 
for x in range(101):
    sum  = sum + x
    print(sum)
#break语句
#n = 2
#while n <= 100:
    #if n > 30:
        #break
    #print(n)
    #n = n + 1
#print('end')
#continue语句
#n = 0 
#while n < 20:
    #n = n +1
    #if n % 4 == 0:
        #continue
    #print(n)
#